Tube holding device



Feb. 8, 1938. F. J. JUNKERMANN 2,107,635

TUBE HOLDING DEVICE Fil ed Nov. 18, 1936 2 Sheets-Sheet l Qll un A Iiiiui INVENTOR,

fPed unkermari Feb. 8, 1938. F. J. JUNKERMANN TUBE HOLDING DEVICE 2 Sheets-Sheet 2 INVENTOR. mann 2W4:

ATTORNEY.

Filed Nov. 18, 1936 {fed/Janka.

Patented Feb. c, was

uairso sTATss PATENT GFFEQE TUBE HOLDING DEVICE Fred J. Junkermann, Philadelphia, Pa.

Application November 18, 1936, Serial No. 111,355

4 Claims.

This invention has to do with devices such as Vises which are employed for holding a pipe in position while the same is being cut to a desired length.

At the present time the use of thin walled tubing is becoming more and more widespread, this because this thin walled tubing is usually of copper or other noncorrosible metal, and its use has become a very desirable factor throughout the plumbing and similar arts. In the use of such thin walled tubing, under actual service conditions, it is important that any joint, with the tubing be of such a character as not to re 7 strict the boreoi the tubing, and to this end there has been provided a joint which need not be here described in detail, but which requires as an essential element that the tube present a true square end.

With the above noted conditions in mind, this "invention has in view as its foremost objective the provision of a device which is intended to hold a piece of thin walled tubing in position while the same is beingcut, and at the same time provide a guide fora hack saw, or other similar cutting element, to insure of the tubing being cut squarely on an. angle of with respect to the axis of the tubing.

Inasmuch as the invention is concerned primarily with the cutting of thin walled tubing, it

'is important that provision be made for securely holding the tubing in position while the same is being cut, and yet any crushing or collapse of the tubing must be effectively guarded against.

Accordingly, the invention has in view as a further object the provision of a device of the character above noted which grips a piece of tubing over a comparatively large extent so as to distribute the pressure gripping, and thereby prevent a crushing of the tubing.

Another objective of the present invention is the provision of a device of the character described which is designed to hold any one of a plurality of different sized tubes. In carrying out this idea in a practical embodiment, a pair of blocks are hinged together and each provided with grooves; the grooves in one block being complemental to those in the other. These grooves are semi-cylindrical in formation, and of different sizes, and each is designed to receive a correspondingly sized piece of tubing.

Carried by one of the blocks, at one end, is a structure which constitutes a guide for a hack saw, and this structure provides a notch adjacent each of the said grooves in the said block, the pipe being designed to pass through said notches. When a hack saw is availed of to cut a tube in any one of the grooves, it passes through the guiding elements for all of the grooves, and in this manner insures of an accurate cutting of the tubing.

Yet another object of the present invention lies in the provision of a device of the character above described, which includes a proper mounting for the hinged blocks. Such a mounting preferably takes the form of a pedestal which upstands from a base, and to which is detachably connected the lower of the hinged blocks.

Various other more detailed objects and advantages such as those associated with carrying on the above noted thoughts in a practical embodiment, will in part become apparent, and in part be hereinafter stated, as the description of the invention proceeds.

The invention, therefore, comprises a device which is designed to hold any one of several differently sized thin walled tubes for cutting purposes, and which device consists of a pair of hinged blocks each provided with complemental grooves of different sizes, each of which grooves is designed to receive a correspondingly sized piece of tubing.

The lower of these hinged blocks is mounted in a pedestal, and carries at one end structure constituting a guide for a hack saw. This structure extends across the entire end of the block, and is eiiective to guide a hack saw, regardless of which groove the piece of tubing may be disposed in.

For a full and more complete understanding of the invention, reference may be had to the 0 following description and accompanying drawings, wherein Figure l is a view in side elevation of a pipe holding device, made in accordance with the precepts of this invention,

Figure 2 is a top plan view of the device shown of Figure 1,

Figure 3 is a detailed view in perspective of the hinged blocks, showing the same in open position,

Figure 4- is a view in end elevation bringing out the guide structure,

Figure 5 is a detailed View in perspective of one of the elements of the guide structure, and

Figure 6 is a similar view of another of the elements of the guide structure.

Referring now to the drawings, wherein like reference characters denote corresponding parts, a. tube holding device, such as contemplated by this invention, isshown as comprising a base l8 from which upstands a pedestal ii. The base ii! may be of a substantially circular formation, as shown in the drawings, and is provided with openings, as indicated at i2.

This base iii may rest on any suitable surface, such as a table top, indicated fragmentarily at [3. Fastening devices, such as bolts, indicated at 54, may extend through the openings !2 and openings in the table top is. These bolts M are shown as provided with nuts l5. It is evident that the bolts and nuts I4 and I5 serve to securely anchor the base In in position on the table top I3.

At its upper end, the pedestal II is reduced in diameter to provide a stud I5, which is defined by a shoulder, indicated at H. A lower block, referred to as I8, has formed on its lower face an enlarged portion I3 that is provided with a socket, indicated at 20, which receives the stud I6. A set screw, shown at 2! may be threaded through the enlarged portion I9 to engage the stud I5 and prevent relative movement between the hinged block I8 and the pedestal I I.

Referring now more particularly to Figure 3, the block I8 is shown as provided with a plurality of grooves designated 22, 23, 2t and 25. Each of these grooves are substantially semicylindrical in formation, and are of different sizes. An. upper block, designated 26, is provided with grooves 27, 28, 29 and 30, which are complemental to the grooves 22, 23, 24 and 25. This upper block 26 is hinged to the lower block by the hinges shown at 3|.

At one end the block I8 carries structure which constitutes a guide for a hack saw, and this structure comprises a plate member 32 having openings at 33, through which fastening elements (to be later described) pass, and this plate member also is provided with notches 34, 35, 33 and 3?. When the plate member 32 is in position, these notches 34, 35, 35 and 31 align with and constitute a substantial continuation of the grooves 22. 23, 24 and 25.

A second plate member 33, at its lower end, is provided with a thickened portion, as indicated at 39, and this thickened portion is provided with openings 36, which align with the openings 33 in the plate 32, as well as similar openings which are formed in the block I8, the latter being shown at ll in Figure 1.

When the plates 32 and 38 are assembled on the block I8, as by headed screws 42 extending through the openings 33, 33 and 4|, the thickened portion 33 serves to space the upper portions of the plates 32 and 38 apart sufiiciently to provide for the passage of a hack saw, shown at 43, therebetween. The plate 38 is mounted adjacent to the block I3, and has notches M, 45, 46 and 61 which correspond to the notches 35, 35, 36 and 37 in the plate 32. The spacing of the plates 32 and 38 apart, which provides the slot 48 through which the hack saw 43 passes, provides an arrangement whereby this slot 58 is extended an appreciable distance beneath the bottom of the several notches; this to insure of a proper cutting of the tubing.

When the above described device is to be employed, it is first properly set up on a table, or other suitable surface, as shown in Figure l, and is then opened to the position shown in Figure 3. A piece of thin walled tubing, indicated at 49, is now positioned in the proper one of the grooves 22, 23, 23, and 25; the groove, of course, depending on the size of the tubing 29.

The tubing 33 will carry a marking indicating where it is to be cut, and this marking will coincide with the slot 48. The upper block 23 will now be swung over into closed position. As shown in the drawings, the tubing 49 is located in the groove 23, hence the surfaces of the grooves 23 and 23 will engage the tubing 49 to hold the same immovable, while a hack saw passes through the slot 48 for cutting purposes.

Due to the massive size of the blocks I8 and 26, it is not necessary to provide any device for holding the blocks in closed position. Gravity action, and perhaps a gripping by one hand of the operator will be sufficient to firmly hold the tubing 49 in position. This same feature of massiveness and great weight is carried out throughout the entire structure, including the pedestal, so that in many cases it is not necessary to anchor the base it to a supporting surface.

It is notable that while only one piece of tub ing is being cut, the hack saw passes through the entire slot 33, thereby insuring of an accurate guiding thereof during cutting.

While a preferred specific embodiment of the invention is hereinbefore set forth, it is to be clearly understood that I am not to be limited to the exact construction illustrated and described, because various modifications of these details may be provided in putting the invention into practice within the purview of the appended claims.

I claim:

1. A tube holding device of the character described comprising a block formed with a plurality of differently sized grooves, a second block hinged to the first block and formed with a plurality of grooves complemental to the grooves in the first mentioned block, any two complemental grooves constituting a housing for a piece of tubing when the blocks are in closed position, a structure carried by one of the blocks at one end constituting a guide for cutting element, said guide structure extending across all of the said groovesv 2. A tube holding device of the character described comprising a pair of blocks hinged together and each formed with a plurality of grooves, the grooves in one block being complemental to the grooves in the other block, a pair of guide plates carried by one of said blocks, said guide plates being formed with notches which are in alignment with said grooves, and means for maintaining said plates spaced apart to provide a slot for a cutting element.

3. A tube holding device of the character de scribed comprising a base, a pedestal upstanding from the base, a block mounted on said: pedestal, said block being formed with a plurality of differently sized grooves, a pair of guide plates spaced apart and carried by said block at one end, said guide plate being formed with notches which constitute a substantial continuation of said grooves, and a second block hinged to said first block and provided with a plurality of differently sized grooves which are complemental to the grooves in the said first mentioned block.

4. A tube holding device of the character described comprising a base member provided with means for anchoring the same to a supporting surface, a pedestal upstanding from the base member, said pedestal being provided with a stud, a block having a socket receiving said stud, means for preventing relative movement between said block and pedestal, said block being formed with a plurality of difierently sized grooves, guide plates carried by the block at one end and spaced apart to provide a slot for a cutting element, said guide plates being formed with notches constituting substantial continuations of said grooves, and a second block hinged to said first block and provided with a plurality of difiere'ntly sized grooves which are complemental to the grooves in said first block.

. FRED J. JUNKERMANN. 

